I saw an article that I wanted to comment on, but it said that I had to update my profile to do so. I updated it and saved the information, however when I went back to the article is still wanted me to update the profile. I checked, and the additional information that I provided had not been saved. I tried again several times and the information will not save.

Try clearing your browser cache and then trying. The sessions that get set up sometimes go awry which can stop things from working correctly. Also make sure you are accepting cookies - not doing so will keep updates from happening.